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Fri, 31 Oct 2025 14:00:04 -0700 Date: Fri, 31 Oct 2025 14:00:03 -0700 From: Nicolin Chen To: Krzysztof Kozlowski CC: Ashish Mhetre , , , , , , , , , , , , , , , Subject: Re: [PATCH 2/3] dt-bindings: iommu: Add NVIDIA Tegra CMDQV support Message-ID: References: <20251031062959.1521704-1-amhetre@nvidia.com> <20251031062959.1521704-3-amhetre@nvidia.com> <20251031-witty-sociable-chachalaca-b73dbc@kuoka> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20251031-witty-sociable-chachalaca-b73dbc@kuoka> X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF0002529E:EE_|DS0PR12MB8293:EE_ X-MS-Office365-Filtering-Correlation-Id: b15feded-d508-41c3-01f8-08de18c082e8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|36860700013|1800799024|7416014|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?c/Cl4llGOpzFNh3Yoy0vS7Kx4oDSH1w8EPJ5BszjFfJFFeTs1OMDtHsMNiDD?= =?us-ascii?Q?Lbmctt2e3PdrcIc6Oz5Ro44hnf+58RRUNe0bQCDpQ0b3RHDW59kYb7ASYnsd?= =?us-ascii?Q?KecmQcTjbeeceWeShwWoNdyvmFkYn/aVWbFYSJlVwi6RrO9TcP8parNfTp2x?= =?us-ascii?Q?xDrgjqT3EHDjFwcdeVg1ycaoSCSn3aN+3Mx+1N49lVblz05ytgdo3wY1dQ1b?= =?us-ascii?Q?vaOni9bjOgx+kZoQqw8lWZ8xqWeJLlw7M8gpKKNgwIar8uridv54smRDTwM3?= =?us-ascii?Q?ZoviNXMVDUOC2tq59TQ1mk95Z0FM/BedH6kLyMvfvh5+AMmoopG7BPg3Yxll?= =?us-ascii?Q?IW5HJueIWVE+5vIYFbwhF9bAn5FocUhmccP0VC82q7BR+cFTbvkVqRyWtznp?= =?us-ascii?Q?MIvo6oxS9Cy8SbmQzzrmZ1x6QkO/0HYXKn45OVvfEzLo37jn6kmVLu2hNJ35?= =?us-ascii?Q?Uyg1ly3CjxizJmnAyigyGsu9/agOm0baThiNwooVxWg9kHMaSf6vFba1uMPp?= =?us-ascii?Q?2Ro5+NP7Xi5UyU8DaFEErCkY9S8sFKB+YnFwpSC5F60JNUOow8mLP9pHVjLw?= =?us-ascii?Q?4/jVzcpovWfbnACjHBBY/uFnz6RtjDKh0VEZvNuJdnVK6rxY8duLfre2idMP?= =?us-ascii?Q?6uKuzjCzi/Vm8+EuD24gonnCwVCijGHTGPk/Y/2D9T9+ICW7BHfSU9d7eLh5?= =?us-ascii?Q?Gy9Wvhvc4aBzi5H9GfzYJD81vjWSV7jtpCRvwMVTIxoazd23CLyxluSzxPJs?= =?us-ascii?Q?KbQvDRRSVqtWKKLKb08xOc1N4pa+uv4taYyrDmP5uR3alRWl/a/4yBptKN95?= =?us-ascii?Q?91Kqov5er8APN3efmPcR4SDQn81gsKTOjPpE2VJYCGAn6dgtMjJGeTAHshua?= =?us-ascii?Q?AOs6kYjXgXXiUOEzyF9AhtZ7KFd+3EKExDF09i7Jocy1CI7eREDcGQikrZkx?= =?us-ascii?Q?mYT/YSB7H+15nBu1V7AuMAai+nQQ7rhsVnk2XgNKkEZ5BynV1C9MlaTiQVwu?= =?us-ascii?Q?XmolAuXAUCYpOciUU/Gb5bjNjqHUcQt6CB/Mmi8Ghp9blMQQL6Eyw7up67bC?= =?us-ascii?Q?ljdfWq/VhcoaXsRvwtNJDRPPO0QnVO4NHmyLpt2+vwhmbzgmoPn8Nw7MZGLG?= =?us-ascii?Q?uorVaejBVWCkO5aRYCCp5ryLAopiEFRRrsTevKtqtrGDKiAamucBLTOgwKwp?= =?us-ascii?Q?5DtvwwwaFgYbW3Cg8VTTAoQFBSgi1icgwHXA+N3Ip7iBmi+ISNPMSF5Dcnbt?= =?us-ascii?Q?VrSfPAPcSRTiabaTH9WU2YKIL0aGYX+Ef4QyynZyQChmNhGhHVjUVdi3AJlj?= =?us-ascii?Q?/6plgKG6z8Adw1MLh3s61YGr2YGJpz3gri/yTgxg1WvGKXezrtxSlwxMFAo2?= =?us-ascii?Q?XJsgR90DMdCA/3BjdH5bkOsgPY9lqDtCSZMxhInByLTT8tlM3WjRf6WqrxBd?= =?us-ascii?Q?cMN4GuFTQox9ZhdaaUOa98k9q1bP1qXubchnkg8wwMMFeN+x+tYiVtnmXezc?= =?us-ascii?Q?QZf66pSLcIFLbC/d59l5qg+ZqcKmNUoUg3X/lcND1LK8CRX9WO4yQXQFyN1M?= =?us-ascii?Q?YuwYAHLnYAGtanAeMTk=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.232;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(36860700013)(1800799024)(7416014)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Oct 2025 21:00:24.0777 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b15feded-d508-41c3-01f8-08de18c082e8 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF0002529E.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8293 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251031_140033_653671_A9A339FF X-CRM114-Status: GOOD ( 12.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Oct 31, 2025 at 09:14:25AM +0100, Krzysztof Kozlowski wrote: > On Fri, Oct 31, 2025 at 06:29:58AM +0000, Ashish Mhetre wrote: > > + The CMDQ-Virtualization hardware block is part of the SMMUv3 implementation > > + on Tegra264 SoCs. It assists in virtualizing the command queue for the SMMU. > > + > > +maintainers: > > + - NVIDIA Corporation > > No. It should be a person. If entire Nvidia cannot find a person, I > don't think we are interested in having this in the kernel. I was the submitter of the driver. I can take it up. Thanks Nicolin